I have troubles enabling keyboard backlight in Asus G53SW-XR1 (2.6.39-2 kernel) with modules:
$ lsmod | grep asus
asus_nb_wmi 12393 0
asus_wmi 18488 1 asus_nb_wmi
sparse_keymap 12760 1 asus_wmi
pci_hotplug 30807 1 asus_wmi
wmi 13202 1 asus_wmi
rfkill 19014 5 asus_wmi,bluetooth,cfg80211
The lights light up just after turning on the laptop (even before grub) but then go dark. When I press the button I get log messages:
Nov 18 16:14:36 grendl kernel: [ 383.513969] keyboard: can't emulate rawmode for keycode 240
Nov 18 16:14:36 grendl kernel: [ 383.513992] keyboard: can't emulate rawmode for keycode 240
Nov 18 16:14:36 grendl kernel: [ 383.514002] asus_wmi: Unknown key b7 pressed
